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netsurf/gtk/gtk_gui.c

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/*
* Copyright 2005 James Bursa <bursa@users.sourceforge.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE /* for strndup */
#include <assert.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <sys/select.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <curl/curl.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <glade/glade.h>
#include "content/content.h"
#include "content/fetch.h"
#include "content/fetchers/fetch_curl.h"
#include "content/urldb.h"
#include "desktop/401login.h"
#include "desktop/browser.h"
#include "desktop/cookies.h"
#include "desktop/gui.h"
#include "desktop/netsurf.h"
#include "desktop/options.h"
#include "gtk/gtk_gui.h"
#include "gtk/gtk_options.h"
#include "gtk/gtk_completion.h"
#include "gtk/gtk_window.h"
#include "gtk/options.h"
#include "gtk/gtk_throbber.h"
#include "gtk/gtk_history.h"
#include "gtk/gtk_filetype.h"
#include "gtk/gtk_download.h"
#include "render/box.h"
#include "render/form.h"
#include "render/html.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/url.h"
#include "utils/utf8.h"
#include "utils/utils.h"
/* Where to search for shared resources. Must have trailing / */
#define RESPATH "/usr/share/netsurf/"
bool gui_in_multitask = false;
char *default_stylesheet_url;
char *adblock_stylesheet_url;
char *options_file_location;
char *glade_file_location;
struct gui_window *search_current_window = 0;
GtkWindow *wndAbout;
GtkWindow *wndWarning;
GladeXML *gladeWindows;
GtkWindow *wndTooltip;
GtkLabel *labelTooltip;
GtkDialog *wndOpenFile;
static GtkWidget *select_menu;
static struct browser_window *select_menu_bw;
static struct form_control *select_menu_control;
static void nsgtk_create_ssl_verify_window(struct browser_window *bw,
struct content *c, const struct ssl_cert_info *certs,
unsigned long num);
static void nsgtk_ssl_accept(GtkButton *w, gpointer data);
static void nsgtk_ssl_reject(GtkButton *w, gpointer data);
static void nsgtk_select_menu_clicked(GtkCheckMenuItem *checkmenuitem,
gpointer user_data);
/**
* Locate a shared resource file by searching known places in order.
*
* \param buf buffer to write to. must be at least PATH_MAX chars
* \param filename file to look for
* \param def default to return if file not found
* \return buf
*
* Search order is: ~/.netsurf/, $NETSURFRES/ (where NETSURFRES is an
* environment variable), and finally the path specified by the #define
* at the top of this file.
*/
static char *find_resource(char *buf, const char *filename, const char *def)
{
char *cdir = getenv("HOME");
char t[PATH_MAX];
if (cdir != NULL) {
strcpy(t, cdir);
strcat(t, "/.netsurf/");
strcat(t, filename);
realpath(t, buf);
if (access(buf, R_OK) == 0)
return buf;
}
cdir = getenv("NETSURFRES");
if (cdir != NULL) {
realpath(cdir, buf);
strcat(buf, "/");
strcat(buf, filename);
if (access(buf, R_OK) == 0)
return buf;
}
strcpy(t, RESPATH);
strcat(t, filename);
realpath(t, buf);
if (access(buf, R_OK) == 0)
return buf;
if (def[0] == '~') {
snprintf(t, PATH_MAX, "%s%s", getenv("HOME"), def + 1);
realpath(t, buf);
} else {
realpath(def, buf);
}
return buf;
}
/**
* Check that ~/.netsurf/ exists, and if it doesn't, create it.
*/
static void check_homedir(void)
{
char *hdir = getenv("HOME");
char buf[BUFSIZ];
if (hdir == NULL) {
/* we really can't continue without a home directory. */
LOG(("HOME is not set - nowhere to store state!"));
die("NetSurf requires HOME to be set in order to run.\n");
}
snprintf(buf, BUFSIZ, "%s/.netsurf", hdir);
if (access(buf, F_OK) != 0) {
LOG(("You don't have a ~/.netsurf - creating one for you."));
if (mkdir(buf, 0777) == -1) {
LOG(("Unable to create %s", buf));
die("NetSurf requires ~/.netsurf to exist, but it cannot be created.\n");
}
}
}
void gui_init(int argc, char** argv)
{
char buf[PATH_MAX];
PangoFontDescription *fontdesc;
gtk_init(&argc, &argv);
check_homedir();
find_resource(buf, "netsurf.glade", "./gtk/res/netsurf.glade");
LOG(("Using '%s' as Glade template file", buf));
glade_file_location = strdup(buf);
glade_init();
gladeWindows = glade_xml_new(glade_file_location, NULL, NULL);
if (gladeWindows == NULL)
die("Unable to load Glade window definitions.\n");
glade_xml_signal_autoconnect(gladeWindows);
find_resource(buf, "netsurf.xpm", "./gtk/res/netsurf.xpm");
gtk_window_set_default_icon_from_file(buf, NULL);
wndTooltip = GTK_WINDOW(glade_xml_get_widget(gladeWindows, "wndTooltip"));
labelTooltip = GTK_LABEL(glade_xml_get_widget(gladeWindows, "tooltip"));
nsgtk_completion_init();
find_resource(buf, "throbber.gif", "./gtk/res/throbber.gif");
nsgtk_throbber_initialise(buf);
if (nsgtk_throbber == NULL)
die("Unable to load throbber image.\n");
find_resource(buf, "Choices", "~/.netsurf/Choices");
LOG(("Using '%s' as Preferences file", buf));
options_file_location = strdup(buf);
options_read(buf);
/* check what the font settings are, setting them to a default font
* if they're not set - stops Pango whinging
*/
#define SETFONTDEFAULT(x,y) (x) = ((x) != NULL) ? (x) : strdup((y))
SETFONTDEFAULT(option_font_sans, "Sans");
SETFONTDEFAULT(option_font_serif, "Serif");
SETFONTDEFAULT(option_font_mono, "Monospace");
SETFONTDEFAULT(option_font_cursive, "Serif");
SETFONTDEFAULT(option_font_fantasy, "Serif");
nsgtk_options_init();
if (!option_cookie_file) {
find_resource(buf, "Cookies", "~/.netsurf/Cookies");
LOG(("Using '%s' as Cookies file", buf));
option_cookie_file = strdup(buf);
}
if (!option_cookie_jar) {
find_resource(buf, "Cookies", "~/.netsurf/Cookies");
LOG(("Using '%s' as Cookie Jar file", buf));
option_cookie_jar = strdup(buf);
}
if (!option_cookie_file || !option_cookie_jar)
die("Failed initialising cookie options");
if (!option_url_file) {
find_resource(buf, "URLs", "~/.netsurf/URLs");
LOG(("Using '%s' as URL file", buf));
option_url_file = strdup(buf);
}
if (!option_ca_path) {
find_resource(buf, "certs", "/etc/ssl/certs");
LOG(("Using '%s' as certificate path", buf));
option_ca_path = strdup(buf);
}
find_resource(buf, "messages", "./gtk/res/messages");
LOG(("Using '%s' as Messages file", buf));
messages_load(buf);
find_resource(buf, "mime.types", "/etc/mime.types");
gtk_fetch_filetype_init(buf);
/* set up stylesheet urls */
find_resource(buf, "gtkdefault.css", "./gtk/res/gtkdefault.css");
default_stylesheet_url = path_to_url(buf);
LOG(("Using '%s' as Default CSS URL", default_stylesheet_url));
find_resource(buf, "adblock.css", "./gtk/res/adblock.css");
adblock_stylesheet_url = path_to_url(buf);
LOG(("Using '%s' as AdBlock CSS URL", adblock_stylesheet_url));
urldb_load(option_url_file);
urldb_load_cookies(option_cookie_file);
wndAbout = GTK_WINDOW(glade_xml_get_widget(gladeWindows, "wndAbout"));
gtk_label_set_text(GTK_LABEL(
glade_xml_get_widget(gladeWindows, "labelVersion")),
netsurf_version);
gtk_image_set_from_file(GTK_IMAGE(
glade_xml_get_widget(gladeWindows, "imageLogo")),
find_resource(buf, "netsurf-logo.png", "netsurf-logo.png"));
fontdesc = pango_font_description_from_string("Monospace 8");
gtk_widget_modify_font(GTK_WIDGET(
glade_xml_get_widget(gladeWindows, "textviewGPL")), fontdesc);
wndWarning = GTK_WINDOW(glade_xml_get_widget(gladeWindows, "wndWarning"));
wndOpenFile = GTK_DIALOG(glade_xml_get_widget(gladeWindows, "wndOpenFile"));
nsgtk_history_init();
nsgtk_download_initialise();
}
void gui_init2(int argc, char** argv)
{
const char *addr = "http://netsurf-browser.org/welcome/";
if (option_homepage_url != NULL && option_homepage_url[0] != '\0')
addr = option_homepage_url;
if (argc > 1) addr = argv[1];
browser_window_create(addr, 0, 0, true);
}
void gui_poll(bool active)
{
CURLMcode code;
fd_set read_fd_set, write_fd_set, exc_fd_set;
int max_fd;
GPollFD *fd_list[1000];
unsigned int fd_count = 0;
bool block = true;
if (browser_reformat_pending)
block = false;
if (active) {
fetch_poll();
FD_ZERO(&read_fd_set);
FD_ZERO(&write_fd_set);
FD_ZERO(&exc_fd_set);
code = curl_multi_fdset(fetch_curl_multi,
&read_fd_set,
&write_fd_set,
&exc_fd_set,
&max_fd);
assert(code == CURLM_OK);
for (int i = 0; i <= max_fd; i++) {
if (FD_ISSET(i, &read_fd_set)) {
GPollFD *fd = malloc(sizeof *fd);
fd->fd = i;
fd->events = G_IO_IN | G_IO_HUP | G_IO_ERR;
g_main_context_add_poll(0, fd, 0);
fd_list[fd_count++] = fd;
}
if (FD_ISSET(i, &write_fd_set)) {
GPollFD *fd = malloc(sizeof *fd);
fd->fd = i;
fd->events = G_IO_OUT | G_IO_ERR;
g_main_context_add_poll(0, fd, 0);
fd_list[fd_count++] = fd;
}
if (FD_ISSET(i, &exc_fd_set)) {
GPollFD *fd = malloc(sizeof *fd);
fd->fd = i;
fd->events = G_IO_ERR;
g_main_context_add_poll(0, fd, 0);
fd_list[fd_count++] = fd;
}
}
}
gtk_main_iteration_do(block);
for (unsigned int i = 0; i != fd_count; i++) {
g_main_context_remove_poll(0, fd_list[i]);
free(fd_list[i]);
}
schedule_run();
if (browser_reformat_pending)
nsgtk_window_process_reformats();
}
void gui_multitask(void)
{
gui_in_multitask = true;
while (gtk_events_pending())
gtk_main_iteration();
gui_in_multitask = false;
}
void gui_quit(void)
{
urldb_save_cookies(option_cookie_jar);
urldb_save(option_url_file);
free(default_stylesheet_url);
free(adblock_stylesheet_url);
free(option_cookie_file);
free(option_cookie_jar);
gtk_fetch_filetype_fin();
}
struct gui_download_window *gui_download_window_create(const char *url,
const char *mime_type, struct fetch *fetch,
unsigned int total_size)
{
return 0;
}
void gui_download_window_data(struct gui_download_window *dw, const char *data,
unsigned int size)
{
}
void gui_download_window_error(struct gui_download_window *dw,
const char *error_msg)
{
}
void gui_download_window_done(struct gui_download_window *dw)
{
}
static void nsgtk_select_menu_clicked(GtkCheckMenuItem *checkmenuitem,
gpointer user_data)
{
browser_window_form_select(select_menu_bw, select_menu_control,
(intptr_t)user_data);
}
void gui_create_form_select_menu(struct browser_window *bw,
struct form_control *control)
{
intptr_t i;
struct form_option *option;
GtkWidget *menu_item;
/* control->data.select.multiple is true if multiple selections
* are allowable. We ignore this, as the core handles it for us.
* Yay. \o/
*/
if (select_menu != NULL)
gtk_widget_destroy(select_menu);
select_menu = gtk_menu_new();
select_menu_bw = bw;
select_menu_control = control;
for (i = 0, option = control->data.select.items; option;
i++, option = option->next) {
menu_item = gtk_check_menu_item_new_with_label(option->text);
if (option->selected)
gtk_check_menu_item_set_active(
GTK_CHECK_MENU_ITEM(menu_item), TRUE);
g_signal_connect(menu_item, "toggled",
G_CALLBACK(nsgtk_select_menu_clicked), (gpointer)i);
gtk_menu_shell_append(GTK_MENU_SHELL(select_menu), menu_item);
}
gtk_widget_show_all(select_menu);
gtk_menu_popup(GTK_MENU(select_menu), NULL, NULL, NULL,
NULL /* data */, 0, gtk_get_current_event_time());
}
void gui_window_save_as_link(struct gui_window *g, struct content *c)
{
}
void gui_launch_url(const char *url)
{
}
bool gui_search_term_highlighted(struct gui_window *g,
unsigned start_offset, unsigned end_offset,
unsigned *start_idx, unsigned *end_idx)
{
return false;
}
void warn_user(const char *warning, const char *detail)
{
char buf[300]; /* 300 is the size the RISC OS GUI uses */
LOG(("%s %s", warning, detail ? detail : ""));
fflush(stdout);
snprintf(buf, sizeof(buf), "%s %s", messages_get(warning),
detail ? detail : "");
buf[sizeof(buf) - 1] = 0;
gtk_label_set_text(GTK_LABEL(glade_xml_get_widget(gladeWindows, "labelWarning")), buf);
gtk_widget_show_all(GTK_WIDGET(wndWarning));
}
void die(const char * const error)
{
fprintf(stderr, "%s", error);
exit(EXIT_FAILURE);
}
void hotlist_visited(struct content *content)
{
}
void gui_cert_verify(struct browser_window *bw, struct content *c,
const struct ssl_cert_info *certs, unsigned long num)
{
nsgtk_create_ssl_verify_window(bw, c, certs, num);
}
static void nsgtk_create_ssl_verify_window(struct browser_window *bw,
struct content *c, const struct ssl_cert_info *certs,
unsigned long num)
{
GladeXML *x = glade_xml_new(glade_file_location, NULL, NULL);
GtkWindow *wnd = GTK_WINDOW(glade_xml_get_widget(x, "wndSSLProblem"));
GtkButton *accept, *reject;
void **session = calloc(sizeof(void *), 4);
session[0] = bw;
session[1] = strdup(c->url);
session[2] = x;
session[3] = wnd;
accept = GTK_BUTTON(glade_xml_get_widget(x, "sslaccept"));
reject = GTK_BUTTON(glade_xml_get_widget(x, "sslreject"));
g_signal_connect(G_OBJECT(accept), "clicked",
G_CALLBACK(nsgtk_ssl_accept), (gpointer)session);
g_signal_connect(G_OBJECT(reject), "clicked",
G_CALLBACK(nsgtk_ssl_reject), (gpointer)session);
gtk_widget_show(GTK_WIDGET(wnd));
}
static void nsgtk_ssl_accept(GtkButton *w, gpointer data)
{
void **session = data;
struct browser_window *bw = session[0];
char *url = session[1];
GladeXML *x = session[2];
GtkWindow *wnd = session[3];
urldb_set_cert_permissions(url, true);
browser_window_go(bw, url, 0, true);
gtk_widget_destroy(GTK_WIDGET(wnd));
g_object_unref(G_OBJECT(x));
free(url);
free(session);
}
static void nsgtk_ssl_reject(GtkButton *w, gpointer data)
{
void **session = data;
GladeXML *x = session[2];
GtkWindow *wnd = session[3];
gtk_widget_destroy(GTK_WIDGET(wnd));
g_object_unref(G_OBJECT(x));
free(session[1]);
free(session);
}
utf8_convert_ret utf8_to_local_encoding(const char *string, size_t len,
char **result)
{
assert(string && result);
if (len == 0)
len = strlen(string);
*result = strndup(string, len);
if (!(*result))
return UTF8_CONVERT_NOMEM;
return UTF8_CONVERT_OK;
}
utf8_convert_ret utf8_from_local_encoding(const char *string, size_t len,
char **result)
{
assert(string && result);
if (len == 0)
len = strlen(string);
*result = strndup(string, len);
if (!(*result))
return UTF8_CONVERT_NOMEM;
return UTF8_CONVERT_OK;
}
char *path_to_url(const char *path)
{
char *r = malloc(strlen(path) + 7 + 1);
strcpy(r, "file://");
strcat(r, path);
return r;
}
char *url_to_path(const char *url)
{
return strdup(url + 5);
}
bool cookies_update(const char *domain, const struct cookie_data *data)
{
return true;
}
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